Collection: Balls - Plastic - Polypropylene

Balls -> Plastic -> Polypropylene

There are 12 products in the sub-categories of Balls - Plastic - Polypropylene. Browse the Balls - Plastic - Polypropylene products table.

Category Details

A selection of Polypropylene Plastic Balls. Excellent for liquid level float applications .Very resistant to most acids and alkalies.

Plastic ball grades are not the same as those for precision balls
Polypropylene
Tolerance and sphericity: up to and including 25.4mm diameter = + / -0.0508mm, over 25.4mm diameter +/-0.0762mm.
Unpolished.
Specific Gravity: 0.91.

Small Parts & Bearings

Additional resources:

A more comprehensive listing may be found in the Balls - Plastic - Polypropylene category on the MBA Minibearings main store.

Diameter (D)	Material	Precision	Hardness	Properties	Colour
Diameter (D) 3.18 mm _{+/- 0.051} (Equiv. 0.125 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91 Deleted Item. Available while stocks last.
Part Number: BL-00318-PP (PK-100) Plastic Balls - 3.18 mm Polypropylene - Grade 2 Ball 13 units (1300 pcs) Available Now \| Item Discontinued - Up to 13 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.06 AUD Regular price ~~$9.60 AUD~~ Sale price $2.06 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required 13 units (1300 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Diameter (D)	Material	Precision	Hardness	Indicative Image
Diameter (D) 3.18 mm _{+/- 0.051} (Equiv. 0.125 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91 Deleted Item. Available while stocks last.
Part Number: BL-00318-PP (PK-100) Plastic Balls - 3.18 mm Polypropylene - Grade 2 Ball 13 units (1300 pcs) Available Now \| Item Discontinued - Up to 13 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.06 AUD Regular price ~~$9.60 AUD~~ Sale price $2.06 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties Quantity Required 13 units (1300 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
BL-00318-PP (PK-100) --- Plastic Balls - 3.18 mm Polypropylene - Grade 2 Ball Sale BL-00318-PP (PK-100) --- Plastic Balls - 3.18 mm Polypropylene - Grade 2 Ball Regular price $2.06 AUD Regular price ~~$9.60 AUD~~ Sale price $2.06 AUD Unit price per Priced, Stocked and Sold Per 100 Units Excludes GST and overseas Taxes & Duties 13 Available Now Sale
Diameter (D) 3.97 mm _{+/- 0.051} (Equiv. 0.156 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00397-PP (PK-5) Plastic Balls - 3.97 mm Polypropylene - Grade 2 Ball 774 units (3870 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $0.68 AUD Regular price Sale price $0.68 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 774 units (3870 pcs) Available Now. Backorder if more than 774.
Diameter (D) 3.97 mm _{+/- 0.051} (Equiv. 0.156 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00397-PP (PK-5) Plastic Balls - 3.97 mm Polypropylene - Grade 2 Ball 774 units (3870 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $0.68 AUD Regular price Sale price $0.68 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 774 units (3870 pcs) Available Now. Backorder if more than 774.
BL-00397-PP (PK-5) --- Plastic Balls - 3.97 mm Polypropylene - Grade 2 Ball BL-00397-PP (PK-5) --- Plastic Balls - 3.97 mm Polypropylene - Grade 2 Ball Regular price $0.68 AUD Regular price Sale price $0.68 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties 774 Available Now
Diameter (D) 4.76 mm _{+/- 0.051} (Equiv. 0.187 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00476-PP (PK-20) Plastic Balls - 4.76 mm Polypropylene - Grade 2 Ball 159 units (3180 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $2.77 AUD Regular price Sale price $2.77 AUD Unit price per Priced, Stocked and Sold Per 20 Units Excludes GST and overseas Taxes & Duties Quantity Required 159 units (3180 pcs) Available Now. Backorder if more than 159.
Diameter (D) 4.76 mm _{+/- 0.051} (Equiv. 0.187 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00476-PP (PK-20) Plastic Balls - 4.76 mm Polypropylene - Grade 2 Ball 159 units (3180 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $2.77 AUD Regular price Sale price $2.77 AUD Unit price per Priced, Stocked and Sold Per 20 Units Excludes GST and overseas Taxes & Duties Quantity Required 159 units (3180 pcs) Available Now. Backorder if more than 159.
BL-00476-PP (PK-20) --- Plastic Balls - 4.76 mm Polypropylene - Grade 2 Ball BL-00476-PP (PK-20) --- Plastic Balls - 4.76 mm Polypropylene - Grade 2 Ball Regular price $2.77 AUD Regular price Sale price $2.77 AUD Unit price per Priced, Stocked and Sold Per 20 Units Excludes GST and overseas Taxes & Duties 159 Available Now
Diameter (D) 5.56 mm _{+/- 0.051} (Equiv. 0.219 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00556-PP (PK-20) Plastic Balls - 5.56 mm Polypropylene - Grade 2 Ball 94 units (1880 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Priced, Stocked and Sold Per 20 Units Excludes GST and overseas Taxes & Duties Quantity Required 94 units (1880 pcs) Available Now. Backorder if more than 94.
Diameter (D) 5.56 mm _{+/- 0.051} (Equiv. 0.219 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00556-PP (PK-20) Plastic Balls - 5.56 mm Polypropylene - Grade 2 Ball 94 units (1880 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Priced, Stocked and Sold Per 20 Units Excludes GST and overseas Taxes & Duties Quantity Required 94 units (1880 pcs) Available Now. Backorder if more than 94.
BL-00556-PP (PK-20) --- Plastic Balls - 5.56 mm Polypropylene - Grade 2 Ball BL-00556-PP (PK-20) --- Plastic Balls - 5.56 mm Polypropylene - Grade 2 Ball Regular price $4.14 AUD Regular price Sale price $4.14 AUD Unit price per Priced, Stocked and Sold Per 20 Units Excludes GST and overseas Taxes & Duties 94 Available Now
Diameter (D) 9.53 mm _{+/- 0.051} (Equiv. 0.375 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-00953-PP (PK-10) Plastic Balls - 9.53 mm Polypropylene - Grade 2 Ball 207 units (2070 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Priced, Stocked and Sold Per 10 Units Excludes GST and overseas Taxes & Duties Quantity Required 207 units (2070 pcs) Available Now. Backorder if more than 207.
Diameter (D) 9.53 mm _{+/- 0.051} (Equiv. 0.375 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-00953-PP (PK-10) Plastic Balls - 9.53 mm Polypropylene - Grade 2 Ball 207 units (2070 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Priced, Stocked and Sold Per 10 Units Excludes GST and overseas Taxes & Duties Quantity Required 207 units (2070 pcs) Available Now. Backorder if more than 207.
BL-00953-PP (PK-10) --- Plastic Balls - 9.53 mm Polypropylene - Grade 2 Ball BL-00953-PP (PK-10) --- Plastic Balls - 9.53 mm Polypropylene - Grade 2 Ball Regular price $4.95 AUD Regular price Sale price $4.95 AUD Unit price per Priced, Stocked and Sold Per 10 Units Excludes GST and overseas Taxes & Duties 207 Available Now
Diameter (D) 12.70 mm _{+/- 0.051} (Equiv. 0.5 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01270-PP (PK-5) Plastic Balls - 12.7 mm Polypropylene - Grade 2 Ball 61 units (305 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $5.95 AUD Regular price Sale price $5.95 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 61 units (305 pcs) Available Now. Backorder if more than 61.
Diameter (D) 12.70 mm _{+/- 0.051} (Equiv. 0.5 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01270-PP (PK-5) Plastic Balls - 12.7 mm Polypropylene - Grade 2 Ball 61 units (305 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $5.95 AUD Regular price Sale price $5.95 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 61 units (305 pcs) Available Now. Backorder if more than 61.
BL-01270-PP (PK-5) --- Plastic Balls - 12.7 mm Polypropylene - Grade 2 Ball BL-01270-PP (PK-5) --- Plastic Balls - 12.7 mm Polypropylene - Grade 2 Ball Regular price $5.95 AUD Regular price Sale price $5.95 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties 61 Available Now
Diameter (D) 15.88 mm _{+/- 0.051} (Equiv. 0.625 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01588-PP (PK-5) Plastic Balls - 15.88 mm Polypropylene - Grade 2 Ball 10 units (50 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $10.05 AUD Regular price Sale price $10.05 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 10 units (50 pcs) Available Now. Backorder if more than 10.
Diameter (D) 15.88 mm _{+/- 0.051} (Equiv. 0.625 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01588-PP (PK-5) Plastic Balls - 15.88 mm Polypropylene - Grade 2 Ball 10 units (50 pcs) Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $10.05 AUD Regular price Sale price $10.05 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties Quantity Required 10 units (50 pcs) Available Now. Backorder if more than 10.
BL-01588-PP (PK-5) --- Plastic Balls - 15.88 mm Polypropylene - Grade 2 Ball BL-01588-PP (PK-5) --- Plastic Balls - 15.88 mm Polypropylene - Grade 2 Ball Regular price $10.05 AUD Regular price Sale price $10.05 AUD Unit price per Priced, Stocked and Sold Per 5 Units Excludes GST and overseas Taxes & Duties 10 Available Now
Diameter (D) 17.46 mm _{+/- 0.051} (Equiv. 0.687 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91 Deleted Item. Available while stocks last.
Part Number: BL-01746-PP (PK-2) Plastic Balls - 17.46 mm Polypropylene - Grade 2 Ball 1 pack (2 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.50 AUD Regular price ~~$5.23 AUD~~ Sale price $2.50 AUD Unit price per Priced, Stocked and Sold Per 2 Units Excludes GST and overseas Taxes & Duties Quantity Required 1 pack (2 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
Diameter (D) 17.46 mm _{+/- 0.051} (Equiv. 0.687 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91 Deleted Item. Available while stocks last.
Part Number: BL-01746-PP (PK-2) Plastic Balls - 17.46 mm Polypropylene - Grade 2 Ball 1 pack (2 pcs) Available Now \| Item Discontinued - Up to 1 may be ordered online. No backorders. Please contact us if you need a larger quantity Regular price $2.50 AUD Regular price ~~$5.23 AUD~~ Sale price $2.50 AUD Unit price per Priced, Stocked and Sold Per 2 Units Excludes GST and overseas Taxes & Duties Quantity Required 1 pack (2 pcs) Available Now. These are priced to quit. Please contact us for a quote if you require more.
BL-01746-PP (PK-2) --- Plastic Balls - 17.46 mm Polypropylene - Grade 2 Ball Sale BL-01746-PP (PK-2) --- Plastic Balls - 17.46 mm Polypropylene - Grade 2 Ball Regular price $2.50 AUD Regular price ~~$5.23 AUD~~ Sale price $2.50 AUD Unit price per Priced, Stocked and Sold Per 2 Units Excludes GST and overseas Taxes & Duties 1 Available Now Sale
Diameter (D) 19.05 mm _{+/- 0.051} (Equiv. 0.75 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-01905-PP (Each) Plastic Balls - 19.05 mm Polypropylene - Grade 2 Ball 43 Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 43 Available Now. Backorder if more than 43.
Diameter (D) 19.05 mm _{+/- 0.051} (Equiv. 0.75 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-01905-PP (Each) Plastic Balls - 19.05 mm Polypropylene - Grade 2 Ball 43 Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 43 Available Now. Backorder if more than 43.
BL-01905-PP (Each) --- Plastic Balls - 19.05 mm Polypropylene - Grade 2 Ball BL-01905-PP (Each) --- Plastic Balls - 19.05 mm Polypropylene - Grade 2 Ball Regular price $3.50 AUD Regular price Sale price $3.50 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 43 Available Now
Diameter (D) 25.40 mm _{+/- 0.051} (Equiv. 1 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-02540-PP (PK-150) Plastic Balls - 25.4 mm Polypropylene - Grade 2 Ball Out of Stock \| Backorder Now \| Orders can be expected around Sat, Feb 21, 2026 Regular price $971.14 AUD Regular price Sale price $971.14 AUD Unit price per Priced, Stocked and Sold Per 150 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
Diameter (D) 25.40 mm _{+/- 0.051} (Equiv. 1 in.)	Material Polypropylene	Precision Grade 2	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-02540-PP (PK-150) Plastic Balls - 25.4 mm Polypropylene - Grade 2 Ball Out of Stock \| Backorder Now \| Orders can be expected around Sat, Feb 21, 2026 Regular price $971.14 AUD Regular price Sale price $971.14 AUD Unit price per Priced, Stocked and Sold Per 150 Units Excludes GST and overseas Taxes & Duties Quantity Required Backorder: Out of Stock.
BL-02540-PP (PK-150) --- Plastic Balls - 25.4 mm Polypropylene - Grade 2 Ball BL-02540-PP (PK-150) --- Plastic Balls - 25.4 mm Polypropylene - Grade 2 Ball Regular price $971.14 AUD Regular price Sale price $971.14 AUD Unit price per Priced, Stocked and Sold Per 150 Units Excludes GST and overseas Taxes & Duties Out of stock! Backorder Now
Diameter (D) 44.45 mm _{+/- 0.051} (Equiv. 1.75 in.)	Material Polypropylene	Precision Grade 3	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-04445-PP (Each) Plastic Balls - 44.45 mm Polypropylene - Grade 3 Ball 3 Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $28.14 AUD Regular price Sale price $28.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 3 Available Now. Backorder if more than 3.
Diameter (D) 44.45 mm _{+/- 0.051} (Equiv. 1.75 in.)	Material Polypropylene	Precision Grade 3	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-04445-PP (Each) Plastic Balls - 44.45 mm Polypropylene - Grade 3 Ball 3 Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $28.14 AUD Regular price Sale price $28.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 3 Available Now. Backorder if more than 3.
BL-04445-PP (Each) --- Plastic Balls - 44.45 mm Polypropylene - Grade 3 Ball BL-04445-PP (Each) --- Plastic Balls - 44.45 mm Polypropylene - Grade 3 Ball Regular price $28.14 AUD Regular price Sale price $28.14 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 3 Available Now
Diameter (D) 101.60 mm _{+/- 0.000762} (Equiv. 4 in.)	Material Polypropylene	Precision Grade 3	Hardness 86 Rockwell R	Properties Excellent for liquid level float applications.	Colour White
Material: Polypropylene Specific Gravity: 0.91
Part Number: BL-10160-PP (Each) Plastic Balls - 101.6 mm Polypropylene - Grade 3 Ball 4 Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $114.77 AUD Regular price ~~$327.26 AUD~~ Sale price $114.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 4 Available Now. Backorder if more than 4.
Diameter (D) 101.60 mm _{+/- 0.000762} (Equiv. 4 in.)	Material Polypropylene	Precision Grade 3	Hardness 86 Rockwell R
Material: Polypropylene Properties: Excellent for liquid level float applications. Colour: White Specific Gravity: 0.91
Part Number: BL-10160-PP (Each) Plastic Balls - 101.6 mm Polypropylene - Grade 3 Ball 4 Available Now \| Further orders can be expected around Sat, Feb 21, 2026 Regular price $114.77 AUD Regular price ~~$327.26 AUD~~ Sale price $114.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties Quantity Required 4 Available Now. Backorder if more than 4.
BL-10160-PP (Each) --- Plastic Balls - 101.6 mm Polypropylene - Grade 3 Ball Sale BL-10160-PP (Each) --- Plastic Balls - 101.6 mm Polypropylene - Grade 3 Ball Regular price $114.77 AUD Regular price ~~$327.26 AUD~~ Sale price $114.77 AUD Unit price per Each Excludes GST and overseas Taxes & Duties 4 Available Now Sale